50.301430 7.497032 50.397193 7.589640 50.301430 7.518784 50.306046 7.527911 50.306046 7.527911 50.305975 7.527759 50.305922 7.527637 50.305854 7.527501 50.305766 7.527337 50.305663 7.527177 50.305560 7.527026 50.305501 7.526949 50.305472 7.526910 50.305444 7.526856 50.305364 7.526640 50.305293 7.526534 50.305181 7.526376 50.305074 7.526250 50.304990 7.526152 50.304944 7.526078 50.304904 7.526013 50.304851 7.525907 50.304802 7.525818 50.304724 7.525735 50.304682 7.525688 50.304637 7.525618 50.304560 7.525454 50.304518 7.525369 50.304451 7.525276 50.304358 7.525159 50.304266 7.525063 50.304193 7.524988 50.304113 7.524925 50.304022 7.524845 50.303934 7.524771 50.303856 7.524705 50.303782 7.524630 50.303719 7.524545 50.303683 7.524489 50.303654 7.524433 50.303622 7.524350 50.303591 7.524220 50.303560 7.524087 50.303518 7.523922 50.303495 7.523844 50.303453 7.523745 50.303411 7.523660 50.303384 7.523606 50.303353 7.523538 50.303341 7.523483 50.303333 7.523425 50.303330 7.523368 50.303334 7.523307 50.303337 7.523237 50.303334 7.523178 50.303330 7.523125 50.303320 7.523089 50.303280 7.523039 50.303217 7.522953 50.303176 7.522905 50.303135 7.522844 50.303073 7.522710 50.302994 7.522538 50.302893 7.522252 50.302827 7.522089 50.302779 7.521946 50.302751 7.521861 50.302735 7.521770 50.302711 7.521658 50.302685 7.521528 50.302664 7.521413 50.302605 7.521234 50.302541 7.521048 50.302468 7.520852 50.302408 7.520675 50.302383 7.520584 50.302368 7.520502 50.302358 7.520379 50.302338 7.520248 50.302302 7.520100 50.302247 7.519961 50.302197 7.519878 50.302164 7.519816 50.302138 7.519769 50.302115 7.519743 50.302066 7.519697 50.302021 7.519657 50.301991 7.519621 50.301951 7.519504 50.301937 7.519442 50.301920 7.519378 50.301894 7.519327 50.301854 7.519263 50.301831 7.519228 50.301820 7.519186 50.301808 7.519129 50.301779 7.519076 50.301751 7.519037 50.301730 7.518999 50.301706 7.518953 50.301655 7.518911 50.301546 7.518860 50.301486 7.518826 50.301430 7.518784 163584 Entwicklung Quellen und Quellbäche Gewässerkundliches Flächenverzeichnis 50.313187 7.513658 50.324194 7.521900 50.324194 7.519086 50.324044 7.518705 50.323984 7.518563 50.323967 7.518521 50.323948 7.518473 50.323853 7.518229 50.323808 7.518138 50.323776 7.518057 50.323725 7.517850 50.323650 7.517530 50.323581 7.517322 50.323471 7.517157 50.323411 7.517079 50.323357 7.516960 50.323314 7.516851 50.323283 7.516786 50.323239 7.516735 50.323185 7.516669 50.323153 7.516628 50.323131 7.516587 50.323012 7.516493 50.322973 7.516392 50.322927 7.516298 50.322865 7.516192 50.322767 7.516122 50.322644 7.516037 50.322560 7.515967 50.322451 7.515848 50.322399 7.515752 50.322349 7.515642 50.322268 7.515595 50.322083 7.515339 50.321938 7.515125 50.321783 7.514800 50.321751 7.514776 50.321692 7.514680 50.321610 7.514561 50.321539 7.514490 50.321484 7.514453 50.321385 7.514436 50.321316 7.514427 50.321241 7.514396 50.320943 7.514092 50.320856 7.514080 50.320793 7.514068 50.320669 7.513977 50.320612 7.513917 50.320566 7.513871 50.320508 7.513839 50.320461 7.513822 50.320413 7.513824 50.320341 7.513859 50.320274 7.513898 50.320171 7.513975 50.320093 7.514036 50.319905 7.513987 50.319873 7.513977 50.319820 7.513960 50.319603 7.513832 50.319446 7.513720 50.319350 7.513658 50.318944 7.513847 50.318302 7.514016 50.317620 7.514615 50.317127 7.515329 50.316702 7.516125 50.316309 7.517085 50.315812 7.518122 50.315291 7.519010 50.314560 7.519973 50.313698 7.521216 50.313187 7.521900 163585 Entwicklung Quellen und Quellbäche Gewässerkundliches Flächenverzeichnis 50.341574 7.523984 50.353035 7.552465 50.352787 7.523984 50.352856 7.524147 50.352899 7.524286 50.352948 7.524430 50.352987 7.524587 50.353018 7.524775 50.353033 7.524912 50.353035 7.525069 50.353025 7.525247 50.353000 7.525450 50.352958 7.525738 50.352906 7.526006 50.352870 7.526281 50.352838 7.526349 50.352789 7.526430 50.352715 7.526583 50.352686 7.526660 50.352667 7.526809 50.352664 7.527004 50.352649 7.527151 50.352642 7.527369 50.352647 7.527621 50.352653 7.527832 50.352650 7.528053 50.352629 7.528186 50.352575 7.528355 50.352484 7.528604 50.352435 7.528735 50.352385 7.528848 50.352312 7.528955 50.352260 7.529054 50.352234 7.529248 50.352202 7.529414 50.352139 7.529561 50.352080 7.529720 50.352033 7.529875 50.351997 7.530043 50.351937 7.530237 50.351858 7.530377 50.351800 7.530524 50.351724 7.530742 50.351598 7.531105 50.351576 7.531165 50.351562 7.531201 50.351514 7.531329 50.351455 7.531473 50.351372 7.531648 50.351302 7.531785 50.351242 7.531908 50.351158 7.532019 50.351049 7.532125 50.350931 7.532217 50.350826 7.532284 50.350694 7.532370 50.350550 7.532400 50.350432 7.532396 50.350403 7.532395 50.350263 7.532385 50.350135 7.532355 50.350011 7.532328 50.349890 7.532295 50.349718 7.532254 50.349604 7.532222 50.349465 7.532161 50.349332 7.532079 50.349254 7.532003 50.349191 7.531925 50.349070 7.531848 50.349007 7.531819 50.348957 7.531814 50.348913 7.531868 50.348884 7.531969 50.348811 7.531983 50.348770 7.531948 50.348722 7.531922 50.348680 7.531900 50.348587 7.531858 50.348510 7.531813 50.348460 7.531780 50.348400 7.531698 50.348335 7.531603 50.348255 7.531512 50.348192 7.531461 50.348121 7.531423 50.348055 7.531419 50.347971 7.531427 50.347860 7.531459 50.347749 7.531499 50.347645 7.531558 50.347511 7.531644 50.347344 7.531741 50.347267 7.531799 50.347121 7.531868 50.347063 7.531949 50.347083 7.532089 50.347039 7.532434 50.346793 7.532885 50.346713 7.533236 50.346579 7.533536 50.346318 7.534283 50.346142 7.534453 50.345915 7.534501 50.345765 7.534525 50.345780 7.535971 50.345710 7.536728 50.345509 7.537171 50.345310 7.537348 50.344812 7.537475 50.344418 7.537606 50.343960 7.537714 50.343684 7.537848 50.343364 7.538287 50.343097 7.538748 50.342722 7.539410 50.342228 7.540210 50.341881 7.540832 50.341637 7.541478 50.341595 7.541721 50.341574 7.542313 50.341784 7.543177 50.342330 7.544399 50.342571 7.544979 50.342929 7.545582 50.343425 7.545639 50.343526 7.545908 50.343719 7.548078 50.343832 7.548409 50.343836 7.550083 50.343890 7.551004 50.344262 7.552465 163586 Entwicklung Quellen und Quellbäche Gewässerkundliches Flächenverzeichnis 50.360556 7.497032 50.362948 7.501119 50.360556 7.497032 50.360664 7.497321 50.360712 7.497390 50.360803 7.497467 50.360909 7.497542 50.361001 7.497648 50.361070 7.497757 50.361127 7.497885 50.361194 7.498082 50.361247 7.498376 50.361311 7.498687 50.361369 7.498932 50.361440 7.499253 50.361515 7.499511 50.361559 7.499649 50.361640 7.499791 50.361719 7.499918 50.361767 7.500005 50.361820 7.500123 50.361897 7.500250 50.361970 7.500341 50.362023 7.500398 50.362077 7.500480 50.362133 7.500583 50.362194 7.500696 50.362261 7.500796 50.362349 7.500907 50.362423 7.501002 50.362495 7.501056 50.362575 7.501085 50.362648 7.501101 50.362712 7.501119 50.362764 7.501117 50.362848 7.501073 50.362948 7.501052 50.362945 7.500965 163587 Entwicklung Quellen und Quellbäche Gewässerkundliches Flächenverzeichnis 50.362945 7.500960 50.369708 7.524959 50.362945 7.500965 50.362983 7.500960 50.363022 7.501005 50.363056 7.501085 50.363094 7.501186 50.363143 7.501321 50.363192 7.501442 50.363236 7.501540 50.363274 7.501610 50.363317 7.501658 50.363377 7.501712 50.363435 7.501763 50.363496 7.501832 50.363561 7.501925 50.363628 7.502042 50.363686 7.502148 50.363758 7.502291 50.363857 7.502507 50.363924 7.502648 50.363954 7.502718 50.363989 7.502768 50.364042 7.502821 50.364101 7.502854 50.364201 7.502907 50.364291 7.502949 50.364389 7.503006 50.364456 7.503043 50.364575 7.503111 50.365917 7.505753 50.366110 7.506157 50.366249 7.507375 50.366294 7.507486 50.366338 7.507648 50.366408 7.507912 50.366439 7.508030 50.366508 7.508303 50.366616 7.508494 50.366674 7.508694 50.366719 7.508868 50.366788 7.509137 50.366816 7.509229 50.366833 7.509284 50.366850 7.509387 50.366882 7.509855 50.366904 7.509926 50.366919 7.509979 50.366970 7.510127 50.366983 7.510214 50.366974 7.510307 50.366969 7.510393 50.366983 7.510502 50.366983 7.510622 50.366967 7.510788 50.366939 7.510987 50.366928 7.511122 50.366953 7.511217 50.367022 7.511235 50.367089 7.511272 50.367111 7.511294 50.367141 7.511324 50.367209 7.511361 50.367260 7.511459 50.367294 7.511568 50.367326 7.511761 50.367328 7.511877 50.367336 7.511963 50.367311 7.512085 50.367268 7.512308 50.367259 7.512449 50.367212 7.512610 50.367120 7.512957 50.367065 7.513227 50.367063 7.513342 50.367085 7.513488 50.367096 7.513636 50.367103 7.513717 50.367083 7.513892 50.367063 7.514021 50.367069 7.514121 50.367190 7.514145 50.367279 7.514302 50.367326 7.514399 50.367319 7.514492 50.367299 7.514587 50.367333 7.514663 50.367413 7.514845 50.367483 7.515012 50.367542 7.515047 50.367625 7.515299 50.367675 7.515452 50.367801 7.515577 50.367915 7.515770 50.367987 7.515961 50.368006 7.516122 50.368026 7.516257 50.368033 7.516306 50.368086 7.516533 50.368139 7.516731 50.368173 7.516881 50.368198 7.517081 50.368210 7.517186 50.368434 7.519053 50.368796 7.519948 50.369056 7.521379 50.369210 7.523024 50.369708 7.524959 163588 Entwicklung Bäche und Bachuferwälder, Gräben Gewässerkundliches Flächenverzeichnis 50.369708 7.524959 50.397193 7.589640 50.369708 7.524959 50.369943 7.525557 50.369963 7.525614 50.369987 7.525682 50.370048 7.526071 50.370126 7.526413 50.370131 7.526421 50.370273 7.526632 50.370477 7.526868 50.370482 7.526873 50.370784 7.527210 50.370840 7.527322 50.370886 7.527573 50.371164 7.529257 50.371182 7.529344 50.371196 7.529415 50.371229 7.529534 50.371282 7.529677 50.371341 7.529782 50.371445 7.529891 50.371755 7.530149 50.371941 7.530304 50.372215 7.530533 50.372531 7.530791 50.372663 7.530898 50.372824 7.531014 50.372903 7.531067 50.372976 7.531116 50.373087 7.531199 50.373184 7.531281 50.373245 7.531363 50.373360 7.531610 50.373520 7.532001 50.373553 7.532094 50.373576 7.532219 50.373576 7.532374 50.373543 7.532491 50.373532 7.532534 50.373472 7.532720 50.373452 7.532759 50.373414 7.532832 50.373391 7.532900 50.373360 7.532986 50.373360 7.532991 50.373286 7.533637 50.373211 7.534184 50.373175 7.534399 50.373157 7.534508 50.373134 7.534586 50.373173 7.534634 50.373252 7.534752 50.373429 7.535034 50.373553 7.535225 50.373646 7.535382 50.373694 7.535502 50.373731 7.535532 50.374070 7.535546 50.374228 7.535681 50.374273 7.535753 50.374386 7.535937 50.374451 7.536015 50.374551 7.536326 50.374511 7.536735 50.374562 7.536966 50.374611 7.537155 50.374647 7.537296 50.374729 7.537626 50.374713 7.537654 50.374645 7.537768 50.374483 7.537895 50.374412 7.537951 50.374398 7.538053 50.374470 7.538306 50.374622 7.538887 50.374644 7.538974 50.374828 7.539552 50.374837 7.539580 50.374909 7.539611 50.374912 7.539620 50.375366 7.540891 50.375520 7.541320 50.375689 7.541408 50.375745 7.541494 50.375797 7.541657 50.375813 7.541685 50.376013 7.542044 50.376050 7.542127 50.376077 7.542216 50.376085 7.542302 50.376147 7.542484 50.376188 7.542580 50.376209 7.542671 50.376282 7.542782 50.376315 7.542871 50.376369 7.542966 50.376519 7.543305 50.376756 7.543678 50.376805 7.543763 50.376864 7.543834 50.377005 7.543920 50.377178 7.543977 50.377281 7.544013 50.377356 7.544030 50.377529 7.544207 50.377609 7.544281 50.377705 7.544405 50.377800 7.544534 50.377916 7.544681 50.377998 7.544790 50.378098 7.544910 50.378157 7.544956 50.378214 7.544991 50.378273 7.545018 50.378316 7.545038 50.378435 7.545063 50.378559 7.545087 50.378668 7.545079 50.378738 7.545079 50.378768 7.545079 50.378834 7.545086 50.378899 7.545090 50.378950 7.545093 50.379115 7.545107 50.379207 7.545108 50.379261 7.545113 50.379334 7.545130 50.379397 7.545236 50.379471 7.545420 50.379624 7.546169 50.379625 7.546237 50.379625 7.546278 50.379636 7.546313 50.379652 7.546368 50.379674 7.546440 50.379782 7.546515 50.379877 7.546604 50.379966 7.546667 50.380046 7.546736 50.380103 7.546773 50.380138 7.546831 50.380171 7.546886 50.380271 7.546968 50.380326 7.547022 50.380421 7.547066 50.380486 7.547110 50.380532 7.547154 50.380586 7.547223 50.380621 7.547310 50.380652 7.547383 50.380672 7.547454 50.380676 7.547626 50.380672 7.547701 50.380687 7.547801 50.380745 7.548129 50.380761 7.548209 50.380772 7.548265 50.380826 7.548545 50.380870 7.548784 50.380902 7.548945 50.380934 7.549105 50.380946 7.549135 50.380963 7.549178 50.381077 7.549558 50.381159 7.549744 50.381227 7.549887 50.381292 7.549973 50.381369 7.550118 50.381424 7.550222 50.381453 7.550290 50.381524 7.550511 50.381621 7.550817 50.381732 7.551080 50.381808 7.551282 50.381855 7.551411 50.381908 7.551627 50.381939 7.551759 50.381983 7.551861 50.382058 7.552008 50.382138 7.552116 50.382226 7.552214 50.382271 7.552265 50.382310 7.552340 50.382376 7.552609 50.382393 7.552670 50.382424 7.552783 50.382480 7.552908 50.382570 7.553105 50.382663 7.553306 50.382743 7.553497 50.382840 7.553701 50.382901 7.553834 50.382927 7.553883 50.382934 7.553896 50.382927 7.553977 50.382892 7.554012 50.382869 7.554040 50.382809 7.554113 50.382677 7.554302 50.383735 7.556427 50.384670 7.558431 50.385151 7.559892 50.385354 7.563417 50.383969 7.567323 50.384093 7.567642 50.384134 7.567779 50.384226 7.567972 50.384257 7.568091 50.384302 7.568277 50.384346 7.568364 50.384381 7.568447 50.384430 7.568611 50.384474 7.568754 50.384512 7.568826 50.384571 7.568943 50.384631 7.569075 50.384671 7.569187 50.384694 7.569273 50.384777 7.569373 50.384845 7.569492 50.384890 7.569604 50.384977 7.569714 50.385050 7.569766 50.385132 7.569814 50.385312 7.569996 50.385368 7.570053 50.385434 7.570120 50.385453 7.570139 50.385481 7.570167 50.385505 7.570190 50.385570 7.570254 50.385682 7.570372 50.385689 7.570378 50.385720 7.570410 50.385754 7.570444 50.385819 7.570510 50.385890 7.570558 50.385977 7.570626 50.386055 7.570711 50.386124 7.570794 50.386217 7.570868 50.386268 7.570899 50.386310 7.570986 50.386374 7.571077 50.386439 7.571112 50.386518 7.571162 50.386580 7.571221 50.386646 7.571248 50.386695 7.571265 50.386793 7.571346 50.386845 7.571414 50.386894 7.571465 50.386947 7.571494 50.387023 7.571526 50.387124 7.571623 50.387177 7.571685 50.387227 7.571737 50.387292 7.571785 50.387344 7.571820 50.387447 7.571988 50.387533 7.572093 50.387588 7.572176 50.387640 7.572254 50.387678 7.572334 50.387737 7.572444 50.387787 7.572497 50.387846 7.572582 50.387890 7.572672 50.387923 7.572751 50.388012 7.572883 50.388097 7.572991 50.388145 7.573136 50.388174 7.573219 50.388212 7.573288 50.388268 7.573350 50.388328 7.573417 50.388363 7.573495 50.388396 7.573592 50.388444 7.573684 50.388477 7.573730 50.388520 7.573774 50.388564 7.573829 50.388619 7.573937 50.388656 7.574026 50.388690 7.574119 50.388719 7.574172 50.388766 7.574227 50.388806 7.574262 50.388848 7.574342 50.388873 7.574433 50.388927 7.574523 50.388974 7.574581 50.389004 7.574619 50.389064 7.574716 50.389114 7.574798 50.389181 7.574911 50.389246 7.575032 50.389297 7.575142 50.389342 7.575240 50.389379 7.575305 50.389425 7.575367 50.389471 7.575429 50.389510 7.575488 50.389533 7.575541 50.389561 7.575635 50.389578 7.575737 50.389599 7.575817 50.389626 7.575894 50.389653 7.575940 50.389684 7.575977 50.389707 7.576016 50.389727 7.576096 50.389741 7.576184 50.389774 7.576287 50.389806 7.576358 50.389835 7.576431 50.389850 7.576504 50.389855 7.576611 50.389874 7.576743 50.389907 7.576862 50.389919 7.576921 50.389936 7.577089 50.389942 7.577191 50.389947 7.577269 50.389953 7.577336 50.389960 7.579312 50.390082 7.579816 50.391162 7.581313 50.390180 7.582942 50.390808 7.583824 50.391929 7.585222 50.392448 7.585619 50.393760 7.587044 50.395032 7.588507 50.395313 7.588617 50.396221 7.589588 50.397193 7.589640 163589 Entwicklung Bäche und Bachuferwälder, Gräben Gewässerkundliches Flächenverzeichnis 50.362914 7.499540 50.363696 7.500965 50.363696 7.499540 50.363664 7.499673 50.363611 7.499755 50.363220 7.500207 50.363132 7.500334 50.363083 7.500389 50.363039 7.500438 50.362958 7.500586 50.362933 7.500680 50.362914 7.500776 50.362928 7.500896 50.362945 7.500965 163590 Entwicklung Quellen und Quellbäche Gewässerkundliches Flächenverzeichnis 50.356883 7.510874 50.363212 7.520699 50.356883 7.510874 50.356906 7.511014 50.356928 7.511063 50.356972 7.511163 50.357084 7.511341 50.357225 7.511573 50.357359 7.511788 50.357454 7.511923 50.357518 7.511961 50.357533 7.511969 50.357574 7.511959 50.357629 7.512040 50.357748 7.512240 50.357894 7.512503 50.357983 7.512640 50.358058 7.512737 50.358122 7.512836 50.358179 7.512955 50.358236 7.513095 50.358255 7.513157 50.358278 7.513236 50.358337 7.513424 50.358385 7.513540 50.358434 7.513599 50.358506 7.513661 50.358593 7.513716 50.358693 7.513778 50.358764 7.513857 50.358837 7.513948 50.358899 7.514065 50.358954 7.514213 50.358992 7.514350 50.359039 7.514527 50.359096 7.514690 50.359158 7.514798 50.359251 7.514969 50.359350 7.515158 50.359487 7.515394 50.359579 7.515553 50.359665 7.515688 50.359724 7.515803 50.359762 7.515925 50.359817 7.516037 50.359875 7.516113 50.359939 7.516179 50.359987 7.516275 50.360031 7.516338 50.360075 7.516305 50.360180 7.516327 50.360263 7.516478 50.360302 7.516645 50.360333 7.516717 50.360384 7.516741 50.360441 7.516741 50.360466 7.516751 50.360499 7.516766 50.360546 7.516831 50.360671 7.516980 50.360804 7.517163 50.360857 7.517306 50.360824 7.517388 50.360785 7.517459 50.360753 7.517532 50.360775 7.517635 50.360834 7.517684 50.360907 7.517745 50.360999 7.517842 50.361094 7.517972 50.361184 7.518086 50.361283 7.518223 50.361361 7.518362 50.361463 7.518588 50.361557 7.518785 50.361682 7.519058 50.361789 7.519279 50.361824 7.519355 50.361898 7.519518 50.361973 7.519654 50.362058 7.519822 50.362128 7.519974 50.362179 7.520131 50.362227 7.520327 50.362270 7.520427 50.362315 7.520447 50.362362 7.520432 50.362450 7.520428 50.362507 7.520498 50.362565 7.520573 50.362626 7.520629 50.362656 7.520651 50.362692 7.520678 50.362761 7.520689 50.362850 7.520699 50.362950 7.520698 50.362959 7.520697 50.363069 7.520683 50.363212 7.520666 163591 Entwicklung Quellen und Quellbäche Gewässerkundliches Flächenverzeichnis 50.363212 7.520666 50.369708 7.526263 50.363212 7.520666 50.363300 7.520669 50.363375 7.520691 50.363443 7.520729 50.363456 7.520741 50.363521 7.520800 50.363601 7.520898 50.363691 7.521028 50.363749 7.521145 50.363796 7.521277 50.363842 7.521407 50.363891 7.521516 50.363927 7.521604 50.363988 7.521697 50.364042 7.521763 50.364089 7.521845 50.364109 7.521880 50.364133 7.521898 50.364176 7.521930 50.364327 7.522177 50.364479 7.522411 50.365152 7.523443 50.365248 7.523536 50.365335 7.523620 50.365504 7.523812 50.365925 7.525148 50.366114 7.525517 50.366351 7.525974 50.366463 7.526096 50.366669 7.526201 50.366803 7.526252 50.366886 7.526263 50.367132 7.526253 50.367301 7.526246 50.367494 7.526151 50.367637 7.526038 50.367713 7.525975 50.367726 7.525964 50.367854 7.525892 50.367966 7.525858 50.368072 7.525824 50.368174 7.525788 50.368214 7.525713 50.368240 7.525666 50.368445 7.525391 50.368904 7.525391 50.368915 7.525391 50.368994 7.525506 50.369058 7.525562 50.369115 7.525543 50.369345 7.525310 50.369708 7.524959 163592 Entwicklung Bäche und Bachuferwälder, Gräben Gewässerkundliches Flächenverzeichnis 50.362094 7.518463 50.363212 7.520666 50.362144 7.518463 50.362109 7.518540 50.362094 7.518619 50.362099 7.518714 50.362139 7.518832 50.362206 7.518945 50.362301 7.519092 50.362369 7.519206 50.362444 7.519325 50.362510 7.519447 50.362557 7.519536 50.362590 7.519624 50.362608 7.519722 50.362609 7.519804 50.362622 7.519900 50.362660 7.519977 50.362712 7.520056 50.362807 7.520199 50.362907 7.520332 50.363007 7.520427 50.363093 7.520541 50.363143 7.520594 50.363212 7.520666 163593 Entwicklung Quellen und Quellbäche Gewässerkundliches Flächenverzeichnis